I am not able to click on anything on the top 1/4 of any webpage. The cursor won't even highlight anything when I move my mouse over it. This is only for Firefox. The mouse works perfectly fine for everything else. I opened Internet Explorer to see if it had the same issue and it did not. I know it is not something wrong with the mouse because when I had my mouse hovering on the top 1/4 of the web page I did a Synaptics Pointing Device Pressure Graph test and it registered whenever I tried to click. I tried to uninstall and re-install Firefox but it didn't do anything. This happened to me suddenly this morning. I did not install anything, there were no Firefox updates, or anything. I have no idea what could have caused this.